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February 14, 2026Journal of Prosthodontic Research0 citationsOpen Access

Effect of zirconia tube reinforcement on fracture resistance and microleakage of endodontically treated premolars with flared root canals under cyclic loading

MYMingchen Yu WKWataru Komada SOShinya Oishi

Key Points

The research aims to evaluate the effects of zirconia tube reinforcement on fracture resistance and microleakage in endodontically treated premolars with flared root canals.
Conducted experiments on endodontically treated premolars with flared root canals
Applied zirconia tube reinforcement
Tested fracture resistance under cyclic loading
Assessed microleakage levels
Zirconia tubes significantly enhanced fracture resistance in treated premolars
There was a notable reduction in microleakage in samples reinforced with zirconia tubes

Abstract

Zirconia tubes enhanced fracture resistance and reduced microleakage under cyclic loading in endodontically treated premolars. Foundation restorations using zirconia tubes may be a reliable reinforcement option for structurally weakened roots. Further clinical and long-term studies are required to confirm these findings.

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